curl --request POST \
  --url https://api.scholarlysoftware.com/api/v1/folders/{folder_id}/file_upload_requests \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/vnd.api+json' \
  --data '
{
  "data": {
    "type": "file",
    "attributes": {
      "name": "annual_report.pdf",
      "size": 1024000,
      "checksum": "rL0Y20zC+Fzt72VPzMSk2A==",
      "content_type": "application/pdf"
    }
  }
}
'

import requests

url = "https://api.scholarlysoftware.com/api/v1/folders/{folder_id}/file_upload_requests"

payload = { "data": {
        "type": "file",
        "attributes": {
            "name": "annual_report.pdf",
            "size": 1024000,
            "checksum": "rL0Y20zC+Fzt72VPzMSk2A==",
            "content_type": "application/pdf"
        }
    } }
headers = {
    "Authorization": "Bearer <token>",
    "Content-Type": "application/vnd.api+json"
}

response = requests.post(url, json=payload, headers=headers)

print(response.text)

const options = {
  method: 'POST',
  headers: {Authorization: 'Bearer <token>', 'Content-Type': 'application/vnd.api+json'},
  body: JSON.stringify({
    data: {
      type: 'file',
      attributes: {
        name: 'annual_report.pdf',
        size: 1024000,
        checksum: 'rL0Y20zC+Fzt72VPzMSk2A==',
        content_type: 'application/pdf'
      }
    }
  })
};

fetch('https://api.scholarlysoftware.com/api/v1/folders/{folder_id}/file_upload_requests', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

{
  "data": {
    "id": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
    "type": "file_upload_request",
    "attributes": {
      "created_at": "<string>",
      "updated_at": "<string>",
      "name": "annual_report.pdf",
      "content_type": "application/pdf",
      "byte_size": 1024000,
      "checksum_md5": "<string>",
      "url": "<string>",
      "locked": true,
      "state": "<string>"
    },
    "relationships": {
      "folder": {
        "links": {
          "related": "<string>"
        },
        "meta": {}
      },
      "created_by": {
        "links": {
          "related": "<string>"
        },
        "meta": {}
      }
    }
  },
  "meta": {
    "direct_upload": {
      "url": "<string>",
      "headers": {},
      "blob_signed_id": "<string>"
    }
  }
}

{
  "errors": [
    {
      "status": "<string>",
      "title": "<string>",
      "detail": "<string>"
    }
  ]
}

{
  "errors": [
    {
      "status": "<string>",
      "title": "<string>",
      "detail": "<string>"
    }
  ]
}

{
  "errors": [
    {
      "status": "<string>",
      "title": "<string>",
      "detail": "<string>"
    }
  ]
}

{
  "errors": [
    {
      "status": "422",
      "title": "Validation Error",
      "detail": "Label can't be blank"
    }
  ]
}